Republican Rep. Denny Rehberg has exploited his family's long Montana history to get where he is today, but his current campaign for Democrat Jon Tester's Senate seat is raising questions about his record and that history.

Pioneering mountaineer Peter Metcalf built Black Diamond into a successful climbing-gear business when nobody thought it could be done. But his dream of turning the outdoor industry into a force for nature remains tantalizingly elusive.

As their natural roosts disappeared, Vaux's swifts turned to old, brick chimneys for refuge during long migrations. Those safe havens are disappearing, too. Luckily, the swifts -- and the chimneys -- have found a champion in Larry Schwitters

Aspen Skiing Company Sustainability VP Auden Schendler, and professional snowboarder Jeremy Jones on why ski corporations and pro athletes should step up to the climate crisis -- and how they can do it.

High Country News showcases a selection of photos submitted to SAGE Magazine, a student-run environmental magazine at the Yale Forestry School. The images include beautiful wildlife photography and poignant illustrations of humans' relationship to the natural world.

Volunteers at the Denver Museum of Nature and Science's Colorado Spider Survey help scientists gather important data by roaming nooks and crannies across the state, finding and cataloguing Colorado's myriad spiders.

The San Onofre nuclear power plant has problems that are perhaps endemic to the industry, and chairman Gregory Jaczko's May 2012 resignation from the Nuclear Regulatory Commission means there's one less strong regulator keeping a sharp eye on industry.

Candidate conservation agreements try to keep rare species, like Colorado's Gunnison sage grouse, off the endangered species list, or at least healthy enough to lessen the restrictions that come with listing.

Canadian farmer Gary Lewis, fed up with the failures of synthetic fertilizer, has invented a system called Bio-Agtive Emissions Technology, a tractor add-on that recycles diesel emissions into fertilizer.

After he impersonated a Heartland Institute board member, gadfly scientist and Pacific Institute head Peter Gleick has been persona non grata. But California water bosses may miss his fierce intellect.